The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8156780 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 17, 2012

Filed:

May. 12, 2005
Applicants:

Stefan Fellenberg, Berlin, DE;

Juergen Fahrenbach, Aichelberg, DE;

Hans-joerg Schaller, Vaihingen, DE;

Inventors:

Stefan Fellenberg, Berlin, DE;

Juergen Fahrenbach, Aichelberg, DE;

Hans-Joerg Schaller, Vaihingen, DE;

Assignee:

nanoferenz GmbH, Berlin, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 43/28 (2006.01); B21D 31/00 (2006.01); B26D 7/14 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a method of cutting high-tensile workpieces, in particular sheet metals of martensite steel, the workpiece is subjected to a bending stress prior and during a shearing process. The bending stress causes a substantial component of a tensile force transverse to a desired cutting contour. Tensile stresses are superimposed to the shearing stresses, which favor the beginning of the workpiece separation. The bending stress is preferably selected so that the resulting tensile stress exists at a side facing the cutting tool.


Find Patent Forward Citations

Fellenberg, Stefan. (2012). Method and device for cutting high-tensile sheet metal, and press (U.S. Patent No. 8156780). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8156780

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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